Greptile builds AI agents that review and test code changes with full context of the codebase, a mission driven by Co‑founder and CEO Daksh Gupta to reduce bugs and make software more reliable. Using GPT-6 Astra’s computer‑use ability, Greptile can automatically start a development server for each pull request, resize the browser to an iPhone‑sized viewport, and simulate user interaction to spot UI issues like a disappearing button.
Validating a pull request means checking logical correctness, intended behavior, security, and compatibility; running the app is essential because static analysis may miss runtime bugs. GPT-6 Astra automates this end‑to‑end testing at scale, a speed that makes traditional QA firms seem slow.
The company also introduces Daybreak, a security layer that makes it easy for startups to harden their systems against sophisticated attackers. By indexing a company’s codebase and documentation via a Model Context Protocol (MCP) server, Codex enables AI‑generated code that follows existing patterns, reducing revert rates and saving inference costs for thousands of customers.
Looking ahead, Ultrafast aims to eliminate the bottleneck of turning ideas into working software, using model intelligence to accelerate development and ultimately make critical enterprise software as easy to ship as a side project, with OpenAI providing the validation needed.
Source: OpenAI Blog · Summarized by HeadlinesBriefing